Fire door is a kind of door, so its function is to separate and protect like ordinary door. However, as a fire door, it is different from other doors in that it can prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure evacuation.

ZHTdoors albaabbada dabka, 31 sano oo waayo-aragnimo wax soo saar ah oo albaabbada dabka iyo Daaqadaha. Albaabada dabka UL ee ugu muhiimsan, albaabada dabka EN, BS EN albaabbada dabka, iwm.